Table of Contents
Advertisement
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0
1
2
ELECTRICAL CONNECTIONS
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death due to electric shock.
Wiring must conform with NEC or CEC and all local codes.
Undersized wires could cause poor equipment performance,
equipment damage or fire.
To avoid the risk of fire or equipment damage, use copper
conductors.
The condensing unit rating plate lists pertinent electrical data neces-
sary for proper electrical service and overcurrent protection. Wires
should be sized to limit voltage drop to 2% (max.) from the main
breaker or fuse panel to the condensing unit. Consult the NEC, CEC,
and all local codes to determine the correct wire gauge and length.
Local codes often require a disconnect switch located near the
unit; do not install the switch on the unit. Refer to the installation
instructions supplied with the indoor furnace/air handler for specific
wiring connections and indoor unit configuration. Likewise, consult
the instructions packaged with the thermostat for mounting and
location information.
OVERCURRENT PROTECTION
The following overcurrent protection devices are approved for use.
•
Time delay fuses
•
HACR type circuit breakers
These devices have sufficient time delay to permit the motor-com-
pressor to start and accelerate its load.
LEAK(S)
PRESENT
CONDENSIBLES OR SMALL
LEAK PRESENT
NO LEAKS
NO CONDENSIBLES
3
4
5
6
7
8
9
10
MINUTES
HIGH VOLTAGE CONNECTIONS
Route power supply and ground wires through the high voltage port
and terminate in accordance with the wiring diagram provided inside
the control panel cover.
LOW VOLTAGE CONNECTIONS
The indoor transformer must supply 24 volt AC low voltage power to
the outdoor section for the control wiring. Cooling only units require
25VA minimum and heat pump units require 40VA minimum. Low
voltage wiring for two-stage units depends on the thermostat used
and the number of control wires between the indoor unit and the
condensing unit. Route control wires through the low voltage port
and terminate in accordance with the wiring diagram provided inside
the control panel cover.
HEAT PUMP
C
W2
O
Y
R
Y
B
W
O
P
R
L
H
R
U
E
U
I
A
R
D
E
T
N
P
R
E
G
L
E
E
Y
O
W
BL
#18 GAUGE 5 WIRE
HEAT PUMP
BL - BLUE
C
W2
O
Y
R
Y
BL/PK - BLUE/PINK STRIPE
B
W
O
P
R
L
H
R
U
E
BR - BROWN
U
I
A
R
D
E
T
N
P
GR - GREEN
R
E
G
L
E
E
Y - YELLOW
Y
O
W
Thermostat with Low Voltage Wire to Heat Pump Unit
SYSTEM START UP
BL
NOTE: Units with crankcase heaters should have high voltage
#18 GAUGE 5 WIRE
power energized for 24 hours prior to start up.
Heat pumps are equipped with a time/temperature defrost con-
trol with field selectable defrost intervals of 30, 60, or 90 minutes.
This setting should be adjusted at this time if needed. The
defrost control also has SmartShift™ technology, which delays
compressor operation at defrost initiation and termination. If
disabling this function is desired, move the jumper from "DLY"
to "NORM" on the defrost control
Adequate refrigerant charge for a matching evaporator and 15 feet
lineset is supplied with the condensing unit. If line set exceeds 15
feet in length, refrigerant should be added at .6 ounces per foot of
liquid line.
Open the suction service valve first! If the liquid service valve is
opened first, oil from the compressor may be drawn into the indoor
coil TXV, restricting refrigerant flow and affecting operation of the
system.
POSSIBLE REFRIGERANT LEAK
To avoid a possible refrigerant leak, open the service valves
until the top of the stem is 1/8" from the retainer.
5
TYPICAL H/P
ROOM THERMOSTAT
O
C
W2
G
R
E
R
R
G
BR
W
W
BL
BL
TYPICAL H/P
ROOM THERMOSTAT
COLOR CODES
OR - ORANGE
O
C
W2
G
R
E
RD - RED
WH - WHITE
R
PU - PURPLE
R
G
W
1
3
BL
EHR
2
4
INDOOR UNIT
RED
R
R
G
G
GREEN
W
W2
WHITE
BL
C
BLUE
INDOOR UNIT
R
RED
R
G
G
GREEN
W
W2
WHITE
BR
W3
BROWN
BL
C
BLUE
Advertisement
Table of Contents
